Effects of RNA interference-induced tryptase down-regulation in P815 cells on IL-6 and TNF-alpha release of endothelial cells
OBJECTIVE: To explore the effects of down-regulated tryptase expression in mast cells on the synthesis and release of interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-alpha) of vascular endothelial cells.
METHODS: Tryptase-siRNA (small-interfering RNA) vector was constructed to inhibit tryptase expression in P815 cells. The medium of P815 cells treated by the tryptase-siRNA (RNAi-P815 group) or pure vector (P815 group) was collected and used to culture bEnd.3 cells. The messenger RNAs (mRNAs) of IL-6 and TNF-alpha in bEnd.3 cells and their protein levels in the medium were measured by reverse transcription polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA), respectively.
RESULTS: IL-6 and TNF-alpha mRNAs in bEnd.3 cells cultured in RNAi-P815-conditioned medium decreased significantly compared to those in P815-conditioned medium. Consistently, IL-6 and TNF-alpha protein levels in the medium of bEnd.3 of RNAi-P815 group were lower than those of P815 group.
CONCLUSION: Reduced tryptase expression significantly inhibited the synthesis and release of IL-6 and TNF-alpha in vascular endothelial cells. RNA interference targeting tryptase expression may be a new anti-inflammatory strategy for vascular diseases.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2008 |
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Erschienen: |
2008 |
Enthalten in: |
Zur Gesamtaufnahme - volume:9 |
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Enthalten in: |
Journal of Zhejiang University. Science. B - 9(2008), 8 vom: 28. Aug., Seite 656-61 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Jiang, Yi-feng [VerfasserIn] |
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Links: |
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Themen: |
Culture Media, Conditioned |
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Anmerkungen: |
Date Completed 19.02.2009 Date Revised 20.10.2021 published: Print Citation Status MEDLINE |
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doi: |
10.1631/jzus.B0810188 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM182159531 |
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100 | 1 | |a Jiang, Yi-feng |e verfasserin |4 aut | |
245 | 1 | 0 | |a Effects of RNA interference-induced tryptase down-regulation in P815 cells on IL-6 and TNF-alpha release of endothelial cells |
264 | 1 | |c 2008 | |
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500 | |a Date Completed 19.02.2009 | ||
500 | |a Date Revised 20.10.2021 | ||
500 | |a published: Print | ||
500 | |a Citation Status MEDLINE | ||
520 | |a OBJECTIVE: To explore the effects of down-regulated tryptase expression in mast cells on the synthesis and release of interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-alpha) of vascular endothelial cells | ||
520 | |a METHODS: Tryptase-siRNA (small-interfering RNA) vector was constructed to inhibit tryptase expression in P815 cells. The medium of P815 cells treated by the tryptase-siRNA (RNAi-P815 group) or pure vector (P815 group) was collected and used to culture bEnd.3 cells. The messenger RNAs (mRNAs) of IL-6 and TNF-alpha in bEnd.3 cells and their protein levels in the medium were measured by reverse transcription polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA), respectively | ||
520 | |a RESULTS: IL-6 and TNF-alpha mRNAs in bEnd.3 cells cultured in RNAi-P815-conditioned medium decreased significantly compared to those in P815-conditioned medium. Consistently, IL-6 and TNF-alpha protein levels in the medium of bEnd.3 of RNAi-P815 group were lower than those of P815 group | ||
520 | |a CONCLUSION: Reduced tryptase expression significantly inhibited the synthesis and release of IL-6 and TNF-alpha in vascular endothelial cells. RNA interference targeting tryptase expression may be a new anti-inflammatory strategy for vascular diseases | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Research Support, Non-U.S. Gov't | |
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700 | 1 | |a Zhao, Feng-di |e verfasserin |4 aut | |
700 | 1 | |a Li, Xiao-bo |e verfasserin |4 aut | |
700 | 1 | |a Ning, Yan-xia |e verfasserin |4 aut | |
700 | 1 | |a Zhi, Xiu-ling |e verfasserin |4 aut | |
700 | 1 | |a Qian, Rui-zhe |e verfasserin |4 aut | |
700 | 1 | |a Yin, Lian-hua |e verfasserin |4 aut | |
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